| 摘要 |
Catheter assemblies (100) include a stabilization mechanism (130) disposed at a distal end of the catheter assembly for stabilizing the catheter assembly within a subintimal space. The stabilization mechanism includes a self-expanding support structure (130) that is slidably positionable within an inflatable balloon (124). The catheter assemblies include an outer shaft (102) which has the balloon at a distal end thereof and an inner shaft (114) which has the support structure mounted on a distal end thereof. The inner shaft is slidably disposed within a lumen of the outer shaft and has a first configuration in which the support structure is held in a compressed state within the outer shaft and a second configuration in which the support structure is permitted to return to an expanded state within the inflatable balloon. In the expanded state, the stabilization mechanism has a flattened laterally-extending profile. |
